The following distribution shows the daily pocket allowance of children of a locality. The mean pocket allowance is Rs. $18$ . Find the missing frequency $k$ .
Daily pocket allowance (in Rs.) $11 - 13$ $13 - 15$ $15 - 17$ $17 - 19$ $19 - 21$ $21 - 23$ $23 - 25$
Number of children $7$ $6$ $9$ $13$ $k$ $5$ $4$

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Daily pocket allowance

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The following distribution shows the daily pocket allowance of children of a locality. The mean pocket allowance is Rs.18. Find the missing frequency f.

Daily pocket allowance (in Rs)	11 − 13	13 − 15	15 −17	17 − 19	19 − 21	21 − 23	23 − 25
Number of workers	7	6	9	13	f	5	4

The following distribution shows the daily pocket allowance of children of a locality. If the mean pocket allowance is Rs. 18, find the missing frequency f.
$\begin{matrix} Daily pocket allowance(in Rs) & 11 - 13 & 13 - 15 & 15 - 17 & 17 - 19 & 19 - 21 & 21 - 23 & 23 - 25 Frequency & 7 & 6 & 9 & 13 & f & 5 & 4 \end{matrix}$

Question 3
The following distribution shows the daily pocket allowance of children of a locality. The mean pocket allowance is Rs.18. Find the missing frequency f.

$\begin{matrix} Daily pocket allowance (in Rs) & 11 - 13 & 13 - 15 & 15 - 17 & 17 - 19 & 19 - 21 & 21 - 23 & 23 - 25 Number of workers & 7 & 6 & 9 & 13 & f & 5 & 4 \end{matrix}$

Q. The following distribution shows the daily pocket allowance given to the children of a multistorey building. The average pocket allowance is Rs 18.00. Find the missing frequency.

Class:	11−13	13−15	15−17	17−19	19−21	21−23	23−25
Frequency:	7	6	9	13	−	5	4

Q. The following distribution shows the daily pocket allowance of children of a locality. The mean pocket allowance is Rs.18. Find the missing frequency 'f' using assumed mean method

\begin{matrix} Pocket allowance & Number of children 11 - 13 & 7 13 - 15 & 6 15 - 17 & 9 17 - 19 & 13 19 - 21 & f 21 - 23 & 5 23 - 25 & 4 \end{matrix}

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Daily pocket allowance (in Rs.)	$11 - 13$	$13 - 15$	$15 - 17$	$17 - 19$	$19 - 21$	$21 - 23$	$23 - 25$
Number of children	$7$	$6$	$9$	$13$	$k$	$5$	$4$

The following distribution shows the daily pocket allowance of children of a locality. The mean pocket allowance is Rs. 18. Find the missing frequency k.Daily pocket allowance (in Rs.)11−1313−1515−1717−1919−2121−2323−25Number of children76913k54

Daily pocket allowance